Chapter 11: Python Modules

The answers on this page show ONE way to solve the exercises. However, there are usually OTHER ways to accomplish the same thing. This is OK!

A suggested solution is ONE way to solve the problem, not the ONLY way.

Chapter Sandbox

Use the editor below to test out any of the solutions!

Solutions

Practice makes better. You will create a program that accomplishes the following:

  1. Steps through a list of Yes/No questions.

  2. Calls functions based on the user’s responses.

Rather than coding all of the functions from scratch, you are going to use existing modules to help assemble your project. Get Starter Code Here.

Import Module Code

Lucky you! Most of the functions you need are in the averages.py and display.py files.

  1. In main.py, add a statement to import all functions from the averages module.

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    import averages

  1. Use the as keyword to rename the imported print_all function to display_results.

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    from display import print_all as display_results

Back to the exercises.

Finish Coding A New Module

random_select.py requires your attention.

  1. Add code to complete the random_from_list function. It should take a list as an argument and then return a randomly selected element from that list.

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    import random

def random_from_list(a_list):
   # Your code here to select a random element from the list passed to the function.
   random_element = random.choice(a_list)

   # Return the selected element
   return random_element

Back to the exercises.

Finish the Project

Now complete the project code.

The line references given below assume that you added no blank lines during your work in the previous sections. If you did, do not worry. The comments in main.py will still show you where to add code.

  1. Line 19: Call display_results to print all of the tests and student scores. Be sure to pass in the correct arguments.

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    display_results(astronauts, test_titles, scores)

  2. Line 23: Using dot notation, call average_for_test to print the class average for each test. Use title_index and scores as arguments.

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    avg = averages.average_for_test(title_index, scores)

  1. Line 30: Call random_from_list to pick the next spacewalker from the astronauts list.

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    walker = random_select.random_from_list(astronauts)

Back to the exercises.

Sanity check!

In your output, the spacings for the test score columns will probably NOT line up perfectly as seen below. This is OK!

When we learn how to display output in a window other than the console, we will worry about making columns look nice.

Would you like to display all scores? Y/N: Y
Name    Math    Fitness Coding  Nav Communication
Fox 95  86  83  81  76
Turtle  79  71  79  87  72
Cat 94  87  87  83  82
Hippo   99  77  91  79  80
Dog 96  95  99  82  70